package fuckjava;

import java.math.BigInteger;

public class testright {

	public static void main(String[] args) {
		BigInteger sum = new BigInteger("120");
		int a = 1;
		int b = 2;
		int c = 5;
		int d = 4;
		System.out.println(sum.testBit(7));
	}
}
